6 HP Johnson, 1968, & 73

[dhall3]

I have a couple of old Johnson's 6 HP. Can you tell me what ranges of compression would be acceptale for these motors? What was compression when new etc.? Thanks.

 

[Bear]

Re: 6 HP Johnson, 1968, & 73

I have a '65 6HP myself. But no manual (yes I have no manual - but you should get one )<br /><br />Did a search here for: compression 6hp<br />Several topics found. One top reading was 83 and two other got 80. That gives you an idea, right?<br /><br />The important thing is that the are equal or within 5-10%.<br /><br />Hope it helps.

 

[dhall3]

Re: 6 HP Johnson, 1968, & 73

Thanks Bear, On one motor the compression was 70 & 72 and the other motor 75 & 75 so guess thats not to bad. Thanks again<br />

 

[Chinewalker]

Re: 6 HP Johnson, 1968, & 73

Also, keep in mind that every gauge is different. It's more important to have them relatively even than extremely high....<br />- Scott